Surface-scouring machine



F. M. FURBEH. SURFACE SCOURING MACHINE.

APPLICATION HL'ED AUG. 4. I919.

1,374,194. Patented Apr. 12, 1921.

AMEN m u WWTNTU/ oNrrEo sm'rrs KENT QFHQE.

FREDERICK M. FURBER, OF REVERE, MASSACHUSETTS, ASSIGNOR T0 UNITED SH E MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A GORPORATION OF new anasnv.

SURFACE-SCQURING .lz-EACEEEE.

To all whom it my concern."

Be it known that I, FREDERICK M. Fpnenn, a citizen of the United States, residln at :Revere, in the county of Suffolk and tate of Massachusetts, have invented certain Improvements in Surface-Securing Machines,

of which the following description, in con-' nection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts 1n the several figures.

This invention relates to abrading machines. The invention is set forth with particular reference to use in connection with mechanisms for removing the glaze from rubber soles to prepare their surfaces for the adhesive connection of rubber heels thereto.

In the manufacture of that type of rubber shoes the heelsof which are molded separa'tely from the soles, cement is used to connect the soles and heels. To enable the cement to be effective the surfaces tobe connected together need to be scoured or abraded to remove the glaze which results from the vulcanizing in molds. For thls .purpose the entire surface of the heel can well be abraded, but it is not desirable to abrade any more of the sole surface than that which is to form the heel seat and will be covered by the heel.

An importantobject of the present invention is to provide a machine by means of which that portion of a sole to which a heel is to be cemented canbe roughened along a w-predetermined lengthwise area of the sole, -to remove the glaze therefrom.

In a preferred form of the invention the machine includes a work support having an adjustable gage or stop for the heel end of a sole and an abrasive roll between which and said support the sole can be drawn.

Preferably, andf in accordance with another feature of ,my invention, a supporting Specification of Letters Patent.

Patented Apr. in, rear;

Application filed. August 4, 1919. Seriai Ho. 315,085..

support Without affecting the action of the means for permitting the support to ield.

Other features and advantages incident to and resulting from the .use of the machine w1ll be explained in the following description 1n connection with the accompanying dI 3.W1I1gS, and the scope of the invention Wlll be pointed out'in the appended claims.

In the accompanying drawings, Figure 1 1s a broken side elevation of a scouring machine embodying my improvements;

Fig. 2 is a front elevation of the upper parlt s of 1the machine looking from the right in 1g.

F1g. 3 is a wow similar to a portion of Fig. 1 but showing a position which the work support assumes during, the operation of abrading' a sole; and

Fig. 4 is a detail perspective view of portions which controlthe movements of the work support.

A suitable column or machine frame is indicated at 12 having bearings 13 for a shaft 14; which is rotated in the direction ofthe arrow in Fig. 1 by any suitable means such as a pulley and belt not/shown.

The shaft 14 projects from the'frame and has secured thereto an abrasive roll 15. i The support for the work, such as a sole indicated at a in Fig. 3, comprises a table and a.

roll connected thereto between which roll and the abrasive roll the work is to be drawn. This work support also serves the purpose of a gage carrier. In the particular embodiment of the invention illustrated this portion of the machine comprises a table 16 having a work gage or stop 17 adjustable toward or from the nip or bite of the rolls and secured in position by a screw 18. Said table or gage carrier is carried at the upper end of yoke or frame 19 the lower end of which (Fig. 2) is formed as a sleeve 20 (Fig. 2). This sleeve is secured to a pin 21 by means of a set screw 22. Mounted in an opening of the yoke or frame 19 is a pressure roll 23 mounted loosely on a pin or shaft 24. i

A bracket portion 25 of the frame, as-best shown in Fig. 4, has a sleeve 26 at its lower end. Extending through and fixed in said sleeve is a pin 27. Mounted to rock on the pin 27 is a hub 28 having arms 29 formed or provided with bearings for the p1vot pm 21 hereinbefore described. Another arm 30 of said hub 28 is connected by a link 31 to a A spring 36 is foot lever 32. e I

To normally hold the parts in the position'shown in Fig. 1 a spring 33 is employed, attached at one end 34 to the column or frame of the machine and at its other end to an arm 35 of the sleeve'20 (Figs. 1 and 2). j

attached at one end to the table or gage carrier 16 and at the other end to the frame of the machine.- This spring 25 (Fig. 4

'When a sole a is to be abraded '36 exertsa constanttendency to move the yoke or frame 19 in a somewhat angular direction on ivot 21, such movement, however, being imited by a roll 37 loosely mounted on pin 24 and bearing against a ide 38 projecting from the frame bracket The hub 28 has alug 39 in which a screw 40 is mounted, the inner end of said screw-being adapted to contact with a stop lug 41 of the fixed bearing 26.

Normally the parts, of the machine occupy the relative positions shown in Fig. 1.

tion on the sole depends, of course, on how far the sole is inserte d before the normal space between the abrasive roll and the work support has been reduced. This distance of insertion is re latable by adjusting the gageor stop 1 Of course said gagev or stop might be entirely omitted and then there would be no interference with using the machine for roughenini an'unlimited area of the sole which ma run through twice, once with one end rst and then, reversing the sole, with the other end first.

The spring 36 serves the purpose of rendering t e table or work support yieldable at all times whether the latter has been fully raised b the operator or not. In other words, a ter the table has been raised to the limit determined by the adjustable stop it. is in- 1, with its lazed-surface up he operator t en, by depressing sole will still be taken care of because said spring 36 permits the support to yield.

B comparing Figs. 1 and 3 it will be rea ily understood that by adjusting the screw 40, the de cc to which the space between the abras ve roll and the work support can be reduced by depressing the foot lever 32 can bevaried to suit the thickness of the work to be operated upon, without risk of actual contact of the abrasive roll and the work support when there is no work between them. This will be understood readily by referring to Fig. 3 which shows that with the screw 40 nearly in contact with stop lug 41, the frame 19'and its roll 23 can only be lifted, by the spring 36, from the full line position to the dotted line position even after the sole has been entirely withdrawn. In other words, supposing that the screw 40 has been adjusted to the position shown in Figs. '1 and 3, the parts of the machine normally stand as in Fig. 1 and the work can be freel inserted against the stop 17 If the wor is of the thickness represented, or if a thin portion should be between the two rolls, the spring 36 would yieldingly tend to maintain the-table and roll in substantiall "the position indicated by dottedlines in ig. 3, the end of screw 40 then contacting with lug 41. A thick sole, or a thicker portion of the sole, would simply act to depress the r0l123 and table 16 to, sa substantially the full" line position of ig. 3. After the sole is entirely withdrawn, assuming that the lever 29, 30, is still held in the position of Fig. 3, there can be no contact of roll 23 with roll 15 because of the limiting effect of screw 40 and stol i 41. f

aving described my invention, what I claim as new is:

1. A machine for scouring rubber soles, comprising an abrading roll, a movable support opposite said roll, means carried by said movable support to determine the initial position of the work, and means to rotate the abrading roll in a direction to oppose the withdrawal bf the work.

2. A machine for scouring rubber soles, comprising an abrading roll, a support 0 posite said roll and including a loose y mounted presser roll, means to determine the initial position of the work, and means to rotate the abrading roll in a direction to oppose the withdrawal of the work.

3. A'machine for scouring'rubber soles, comprising an abrading roll, a presser roll on which the sole is supported, initial setting means at one side of the rolls to engage one end of a sole to cause its other end to project from the other side of the rolls, and meansto move the presser roll to carry the sole against the abrading roll when the sole is withdrawn.

4. In a machine of the character described.

an abrading roll and a sole sup ort one of which is mounted to yield relatlvely to the other, said'support comprising a table and a roll, and means for manually varying the space between the abrading roll and support without materially affectin the pressure on a sole passed between the a rading roll and support.

. support without materially affecting the pressure on a sole passed between the abrading roll and support.

6. A machine of the character described, having, in combination, an abrasive roll, a pressure roll, means for normally holding the rolls yieldingly separated, and means ,for manually reducing the space between the rolls.

7. A machine of the character described, having, in combination, an abrasive roll, a pressure roll, means for normally holding the rolls yieldingly separated, a foot treadle, and connections whereby actuation of said treadle will reduce the space between the rolls. 4

8. A machine of the character described, having, in combination, an abrasive roll, a pressure roll, means'for normally holding the rolls yieldingly separated, an adjustable gage for determining the distance to which workcan be inserted between the rolls, and meansfor manually reducing the space between the rolls. a

9. A machine of the character described, having, in combination, an abrasive roll, a movable frame carrying a work support and a gage, means for normally holding said frame ieldingly in a lowered position, and means or manually raising said frame.

10. A machine of the character described, having, in combination, an abrasive roll, a

pivotally supported frame carrying a pressure roll, means for varying the position of the pivot of the frame, and means for guiding the frame relatively to the abrasive roll when said pivot is shifted.

11. A machine of the character described, having, in combination, an abrasive roll, a pivotally supported frame carrying a pressure roll, means for varying the position of the pivot of the frame, and means for guiding the frame relatively to the abrasive roll when said pivot is shifted, said guiding means comprising a roller in axial alinement with the ressure roll and av fixed track for said r0 ler.

12. A machine of the character described, having, in combination, an abrasive roll, a

pivotally supported frame carrying a pres sure roll, means for varying the position of the pivot of the frame yieldinglyiin one direction and positively in the opposite direction, and means for guiding the frame relatively to the abrasive roll when said pivot is shifted.

13. A machine of the character described, having, in combination, an abrasive roll, a pressure roll, means for normally holding the pressure roll yieldingly separated from the abrasive roll, means for manually shifting the pressure roll toward the abrasive roll, and means for adjustably limiting the point to which said pressure roll can be shifted.

14. A machine of the character described,

having, in combination, an abrasive roll, a

pressure roll, means for normally holding the pressure roll yieldingly separated from the abrasive roll, means for manually shifting the pressure roll toward the abrasive roll, and means for adjustably limiting the point to which said pressure roll can be shifted, said limiting means comprising a fixed stop and a cooperating adjusting screw connected to the pressure roll carrier. In testimony whereof I have signed my name to this s ecification.

FR DERICK M. FURBER. 

